At some point after leaving the Doctor, Chris was frozen in cryogenic suspension by the Knights of Jeneve, and placed on a planet in the Ardethe System. His memories were affected by the cryogenic process, but he was able to recall most of them in time. (PROSE: Deadfall)

Chris, at some point following his awakening, went on to become an agent for the Time Lords some time around 2595. His biochemistry was altered by the Time Lords, giving him the ability to travel in time. The Time Lords also altered Chris' memories of his time with the Seventh Doctor. Those memories were changed to make him think he had been abducted from Earth by the "evil renegade", and to think that it was the Doctor who had killed Roz Forrester. Chris worked for the Time Lords in securing the universe in a bottle and opening a gateway for the Time Lords to invade and destroy a bottle universe version of 1970 Earth. During this time, he also negotiated an alliance with the Daleks on Skaro. (PROSE: Dead Romance)

The Time Lords also cloned Cwej multiple times, creating the "Cwejen". Some of these Cwejen went mad, warping trace memories of the Seventh Doctor into a "pale god" they called "Mister Seven". Several of these Cwejen, including Septimus, worked with Straxus on Earth in the 19th century, eventually turning on him and forcing his regeneration. Bernice Summerfield and an earlier incarnation of Straxus defeated the mad Cwejen, which were taken back to Gallifrey for dissection. (AUDIO: The Adventure of the Diogenes Damsel)

Although comic strip companion Izzy Sinclair is often cited as the first LGBT companion, in truth Cwej's same sex encounter comes before Izzy's. That said, Damaged Goods and Izzy's debut were published in the same month: October 1996. Cwej's encounter is also only subtly implied, whereas Izzy is unmistakably shown to be passionately kissing a woman. Jason Kane is also introduced the same year, and casually introduces himself as someone who has slept with 9 women, 5 men, and various humanoid aliens. (PROSE: Death and Diplomacy)